public class Example3_7 {
   public static void main(String args[]) {
      int sum = 0,i,j;
      for(i=1;i<=10;i++) {
         if(i%2==0) {
           continue;
         }
         sum=sum+i;
      }
      System.out.println("sum="+sum);
      for(j=2;j<=100;j++) {
         for(i=2;i<=j/2;i++) {
           if(j%i==0)
              break;
         }
         if(i>j/2) {
           System.out.println(""+j+"是素数");
         }
     }
   }
}

